根据年、月、季度提取数据[关闭]

Question

我有一个如下的输入和输出表。输入表每天更新。我需要找到上一个财政年度、上个月、上一季度的值。我写了下面的查询来查找上一个财政年度的值。

当 ReportFinancialYear = 'FY19' then Value else null end as previous_financial_year_value 的情况

但我想使用 ReportFinancialYear = current Financial Year-1，类似这样。其余的类似公式。谁能帮忙。

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Answer 1

对于 BigQuery 标准 SQL

有点长，但我测试并完成了这项工作。

上一财政年度：

(CASE
    WHEN CAST(REPLACE(UPPER(ReportFinancialYear), "FY", "") AS INT64) + 2000 = EXTRACT(YEAR FROM CURRENT_DATE) - 1 THEN Value
    ELSE NULL
END) AS previous_financial_year_value

上一财季：

(CASE
    WHEN ((CAST(REPLACE(UPPER(ReportFinancialYear), "FY", "") AS INT64) + 2000 = EXTRACT(YEAR FROM CURRENT_DATE) - 1) AND (CAST(REPLACE(UPPER(ReportFinancialQuarter), "Q", "") AS INT64) = 4) AND (EXTRACT(QUARTER FROM CURRENT_DATE) = 1)) OR (CAST(REPLACE(UPPER(ReportFinancialYear), "FY", "") AS INT64) + 2000 = EXTRACT(YEAR FROM CURRENT_DATE) AND (CAST(REPLACE(UPPER(ReportFinancialQuarter), "Q", "") AS INT64) = EXTRACT(QUARTER FROM CURRENT_DATE) - 1)) THEN Value
    ELSE NULL
END) AS previous_financial_quarter_value

上个月：

(CASE
    WHEN ReportMonth = DATE_SUB(DATE_TRUNC(CURRENT_DATE, MONTH), INTERVAL 1 MONTH) THEN Value
    ELSE NULL
END) AS previous_financial_month_value

编辑

由于您还要求当前季度：

(CASE
    WHEN (CAST(REPLACE(UPPER(ReportFinancialYear), "FY", "") AS INT64) + 2000 = EXTRACT(YEAR FROM CURRENT_DATE)) AND (CAST(REPLACE(UPPER(ReportFinancialQuarter), "Q", "") AS INT64) = EXTRACT(QUARTER FROM CURRENT_DATE)) THEN Value
    ELSE NULL
END) AS current_financial_quarter_value

注意：我从 previous_financial_quarter_value 抄错了查询。现在它已经更新和更正了。